Underworks Mens Microfiber Compression V-Neck T-shirt MicrofiberNylonSpandex Made in USA Sizes: Measure Chest in Inches: Small 32-35 / Medium 36-39 / Large 40-44 / X-large 45-48 / 2X 49-52 / 3X 53-82 MENS PERFORMANCE COMPRESSION V-NECK T-SHIRT - Snug feel. Provides elegant compression to slim you down and shape your whole upper body. SHAPES YOUR CHEST, TUMMY, AND SIDES - INVISIBLE UNDER CLOTHING - smooth feel and breathability from silky microfiber nylon that moves with you in all directions. QUICKER RECOVERY FROM EACH WORKOUT - Wearing the Performance Compression crew neck shirt will help in quicker recovery of your muscles after your workout or ball game. MADE IN THE USA - High quality construction and made with the finest materials for maximum durability and service to you The new Underworks Microfiber V-Neck compression shirts feel like skin tight silk! Our fabric offers multi-directional stretching that allows the shirt conform to every curve of your body and move with you. Invisible under clothing. Breathable and cool. Micro-Fiber soft touch, is a man made synthetic fiber made by Dupont. These yarns are especially engineered ultra fine filament yarns in which each filament has a controlled thickness that is 15 times finer than human hair. The result is unmatched comfort, fit, and durability. Our microfiber also has an SPF 50 rating for your protection. Made in USA. <span class="a-text-bold">Reduces Muscle Fatigue</span>  Compression shirts can reduce muscle fatigue and soreness. <span class="a-text-bold">Prevents Strains / Sprains</span>  <span class="a-text-bold">Muscles strains are common among bodybuilders</span>, and Compression shirts can prevent muscles strains due to the pressure applied to your muscles, keeping them in the correct positions. If you are prone to strains during workouts, compression may help. Made in USA <span class="a-text-bold">MEASURE YOUR CHEST:</span> With arms down on side, take a snug measurement around the fullest part of your chest over the nipples. <span class="a-text-bold">HOW TO WEAR:</span> Pull up the garment over head and adjust for comfort. <span class="a-text-bold">HOW TO CARE:</span> Wash in cold water, gentle cycle, tumble dry low or flat dry. No bleach, no iron.